FR619219A - Ventilation system - Google Patents

Ventilation system

Info

Publication number
FR619219A
FR619219A FR619219DA FR619219A FR 619219 A FR619219 A FR 619219A FR 619219D A FR619219D A FR 619219DA FR 619219 A FR619219 A FR 619219A
Authority
FR
France
Prior art keywords
ventilation system
ventilation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Auguste Chanard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR619219A publication Critical patent/FR619219A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR619219D 1925-11-24 1925-11-24 Ventilation system Expired FR619219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR619219T 1925-11-24

Publications (1)

Publication Number Publication Date
FR619219A true FR619219A (en) 1927-03-29

Family

ID=8983504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR619219D Expired FR619219A (en) 1925-11-24 1925-11-24 Ventilation system

Country Status (1)

Country Link
FR (1) FR619219A (en)

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